Psychological statistics
Encyclopedia
Psychological statistics is the application of statistics
Statistics
Statistics is the study of the collection, organization, analysis, and interpretation of data. It deals with all aspects of this, including the planning of data collection in terms of the design of surveys and experiments....

 to psychology
Psychology
Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

. Some of the more common applications include:
  1. psychometrics
    Psychometrics
    Psychometrics is the field of study concerned with the theory and technique of psychological measurement, which includes the measurement of knowledge, abilities, attitudes, personality traits, and educational measurement...

  2. learning theory
    Learning theory (education)
    In psychology and education, learning is commonly defined as a process that brings together cognitive, emotional, and environmental influences and experiences for acquiring, enhancing, or making changes in one's knowledge, skills, values, and world views . Learning as a process focuses on what...

  3. perception
    Perception
    Perception is the process of attaining awareness or understanding of the environment by organizing and interpreting sensory information. All perception involves signals in the nervous system, which in turn result from physical stimulation of the sense organs...

  4. human development
    Developmental psychology
    Developmental psychology, also known as human development, is the scientific study of systematic psychological changes, emotional changes, and perception changes that occur in human beings over the course of their life span. Originally concerned with infants and children, the field has expanded to...

  5. abnormal psychology
    Abnormal psychology
    Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion and thought, which may or may not be understood as precipitating a mental disorder...

  6. Personality test
    Personality test
    -Overview:There are many different types of personality tests. The most common type, the self-report inventory, involves the administration of many questions, or "items", to test-takers who respond by rating the degree to which each item reflects their behavior...

  7. psychological tests


Some of the more commonly used statistical tests in psychology are:

Parametric tests
Parametric statistics
Parametric statistics is a branch of statistics that assumes that the data has come from a type of probability distribution and makes inferences about the parameters of the distribution. Most well-known elementary statistical methods are parametric....

  • Student's t-test
    Student's t-test
    A t-test is any statistical hypothesis test in which the test statistic follows a Student's t distribution if the null hypothesis is supported. It is most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known...

  • analysis of variance
    Analysis of variance
    In statistics, analysis of variance is a collection of statistical models, and their associated procedures, in which the observed variance in a particular variable is partitioned into components attributable to different sources of variation...

     (ANOVA)
    • ANCOVA
      ANCOVA
      In statistics, analysis of covariance is a general linear model with a continuous outcome variable and two or more predictor variables where at least one is continuous and at least one is categorical . ANCOVA is a merger of ANOVA and regression for continuous variables...

       (Analysis of Covariance)
    • MANOVA
      MANOVA
      Multivariate analysis of variance is a generalized form of univariate analysis of variance . It is used when there are two or more dependent variables. It helps to answer : 1. do changes in the independent variable have significant effects on the dependent variables; 2. what are the interactions...

       (Multivariate Analysis of Variance)
  • regression analysis
    Regression analysis
    In statistics, regression analysis includes many techniques for modeling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables...

    • linear regression
      Linear regression
      In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one explanatory variable is called simple regression...

    • hierarchical linear modelling
  • correlation
    Correlation
    In statistics, dependence refers to any statistical relationship between two random variables or two sets of data. Correlation refers to any of a broad class of statistical relationships involving dependence....

    • Pearson product-moment correlation coefficient
      Pearson product-moment correlation coefficient
      In statistics, the Pearson product-moment correlation coefficient is a measure of the correlation between two variables X and Y, giving a value between +1 and −1 inclusive...

    • Spearman's rank correlation coefficient
      Spearman's rank correlation coefficient
      In statistics, Spearman's rank correlation coefficient or Spearman's rho, named after Charles Spearman and often denoted by the Greek letter \rho or as r_s, is a non-parametric measure of statistical dependence between two variables. It assesses how well the relationship between two variables can...


Non-parametric tests
Non-parametric statistics
In statistics, the term non-parametric statistics has at least two different meanings:The first meaning of non-parametric covers techniques that do not rely on data belonging to any particular distribution. These include, among others:...

  • chi-square
  • Mann–Whitney U

Reference

  • Cohen , B.H. (2007) Explaining Psychological Statistics, 3rd Edition, Wiley. ISBN 978-0-470-00718-1
  • Howell, D. (2009) Statistical Methods for Psychology, International Edition, Wadsworth. ISBN 0495597856

External links


The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK